1999 Deville base
95 Eldorado, 99 Deville, 05 CTS
I bought this car used over a year ago and it had starting g problems then, with "service theft system" msg. I finally traced it down to corrosion on the hot wire at the data link connector. Now its doing it again with 2 new codes, like torque pull or smtng, one I remember is p0700. If I leave key on long enough it'll like "click n whirr", then it'll start. It did it at a repair shop the other day and they said it was the body control module, when they heard the clicking behind the radio when the key was turned. He jumped the starter relay, and after cranking for a bit it jumped back to life. Any ideas? P1000 radio, p0700 and can't rmbr the 3 others. Been fine for over a whole year. Thanks for any help, this is my daily driver need it running.